The West African nation of Senegal closed its borders with Guinea and barred all aircraft and ships coming from Guinea, Sierra Leone and Liberia over fears of an Ebola virus outbreak, UPI cited officials as saying. Dr. Eva Marie Colle Seck, Senegal's health minister told the BBC the travel ban, announced by the interior ministry, would not affect the transportation of humanitarian aid. The World Health Organization said travel bans rarely work because they're impossible to enforce. Senegal is situated to the northwest of Guinea, which shares a border with Sierra Leone and Liberia to the southwest. Those three countries have been the epicenter of the Ebola outbreak, of which there are a suspected 2,615 cases and 1,427 deaths as of Friday.